Emerald Ash Borer

(OSU extension photo)

The emerald ash borer (EAB) is an invasive beetle first introduced in the eastern U.S. that has wiped out native ash trees wherever it has spread. It was recently found in Forest Grove, near Portland. By all accounts, containment is not possible after it has become established. We can expect it to reach the southern Willamette Valley within ten years. The impact on our site will be significant.

Notes of the EAB subcommittee of the OCF Land Use Management Planning (LUMP) committee.

Feb. 7, 2023

March 7, 2023

April 4, 2023


See Oregon Department of Forestry fact sheet for more information.

Oregon Invasive Species Council for more links.

OSU Extension Service video

An OSU Extension Service collection of on-line resources and information

Oregon Department of Agriculture quarantine

An EAB trap and lure

OSU Extension Service--How to Recognize Ash Trees

Readiness and Response Plan for Oregon

Hardwoods of the Pacific Northwest

Ash replacement trees evaluation

Arborist Kevin Hillery's article in the Fair Family News, December 2022

Wood Utilization Options

Audio recording of first EAB subcommittee January 3, 2023

Audio recording of the EAB subcommittee Feb. 7, 2023

Audio recording of the EAB subcommittee March 7, 2023

Audio recording of the EAB subcommittee May 2, 2023

Oregon Department of Forestry Forest Health Unit

EAB Risk Areas

EAB in Oregon detection map

OSU Extension Service "Forest Foe: How you can help slow the EAB invasion."

US Forest Service introduces CharBoss, a mobile biochar production machine